#login-box {
    display:none;
    position:absolute;
    width:236px;
    margin:2px 0 0 732px;
}

#login-box-content {
    background-color: #6b727c;
    text-align: center;
    border-radius: 3px;
    position: absolute;
    top: 10px;
    left: 293px;
    padding: 20px;
}

#dangnhap-btn {
    margin: 10px 0 0 0;
}